Work with international minutes as follows. a. Construct a normal probability plot of international minutes. b. What

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Work with international minutes as follows.

a. Construct a normal probability plot of international minutes.

b. What is stopping this variable from being normally distributed.

c. Construct a flag variable to deal with the situation in (b).

d. Construct a normal probability plot of the derived variable nonzero international minutes. Comment on the normality.

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